Combination Brings Compelling Performance and Economics to the
Enterprise Data Center; Provides Full Spectrum of Solutions for Big Data
and Fast Data

SAN JOSE, Calif. & NEWARK, Calif.--(BUSINESS WIRE)--
Western Digital Corp. (NASDAQ: WDC) and Tegile Systems ("Tegile")
announced today that they have entered into a definitive agreement under
which Tegile, a leading provider of flash and persistent-memory storage
solutions for enterprise data center applications, will be acquired by
Western Digital. Financial terms of the transaction were not disclosed.
The acquisition is expected to close the week of Sept. 4, 2017, upon
satisfaction of certain closing conditions as set forth in the
definitive agreement between the parties.

Tegile has been at the forefront of the flash storage revolution since
2012. With its award winning IntelliFlash™ architecture, Tegile has
pioneered a comprehensive storage platform that delivers storage at the
speed of flash memory. Tegile will bring to Western Digital over 1,700
new customers, an innovative product portfolio, and a deeply experienced
team with a proven ability to deliver value to customers.

In today's enterprise and cloud-scale data centers, there is growing
demand to deploy scalable storage architectures that deliver reliable
persistence with high performance and optimal economics for an expanding
range of big data and fast data applications. With Tegile's
IntelliFlash™ products focused on fast data, and Western Digital's
ActiveScale products focused on big data, Western Digital's Data Center
Systems (DCS) business unit will be well positioned to fully address the
diverse set of needs that organizations have in order to harness the
value of their data throughout its lifecycle.

"The Tegile acquisition will fit perfectly in Western Digital's
long-term strategy to deliver high value solutions that address
customers' rapidly evolving storage needs," said Mike Cordano, president
and chief operating officer of Western Digital. "The addition of
Tegile's technology and talented team will advance our goal of solving
customers' most significant challenges in capturing, preserving,
transforming and accessing data. We welcome the Tegile team to Western
Digital and look forward to working together to enhance our leadership
position in enterprise and cloud-based storage."

"We are excited to add this team of deeply experienced storage
professionals to Western Digital," said Phil Bullinger, Western
Digital's senior vice president and general manager of the DCS business
unit. "Not only will we gain an exceptional group of team members, but
also expand our product offerings in the fast-growing solid-state and
hybrid array segments. By combining Tegile's innovative storage system
software with Western Digital's global scale and combination of
components and systems, we expect DCS to capture a sizable share of
flash array demand. Western Digital is focused on the systems business
and this is a significant step forward in advancing our long-term
strategy."

Rohit Kshetrapal, chief executive officer of Tegile said, "Western
Digital has been a key partner and long-term investor in Tegile and has
already enhanced various aspects of Tegile's business, including
engineering integration, HDD/SSD supply chain efficiencies, go-to-market
efforts and customer support. Both Tegile and Western Digital have
introduced industry-changing storage products. The Tegile team looks
forward to continuing this tradition of innovation as part of the
Western Digital family."

The acquisition is expected to accelerate the DCS business unit's
revenue growth as Tegile's high-value, high-growth flash storage arrays
complement the DCS products and can be marketed to Western Digital's
global customer base.

About Western Digital

Western Digital is an industry-leading provider of storage technologies
and solutions that enable people to create, leverage, experience and
preserve data. The company addresses ever-changing market needs by
providing a full portfolio of compelling, high-quality storage solutions
with customer-focused innovation, high efficiency, flexibility and
speed. Our products are marketed under the HGST, SanDisk and WD brands
to OEMs, distributors, resellers, cloud infrastructure providers and
consumers. Financial and investor information is available on the
company's Investor Relations website at investor.wdc.com.

About Tegile Systems

Tegile Systems is pioneering a new generation of persistent-memory
storage solutions that deliver exceptional performance and economics for
a wide range of enterprise applications. With Tegile's line of unified
all-flash and hybrid storage arrays, enterprise customers are running
their mission-critical applications at the speed of memory while
significantly consolidating their transaction processing, analytics,
databases, virtualization, and file services onto a single platform.

Forward-Looking Statements

This news release contains certain forward-looking statements, including
statements regarding the company's acquisition of Tegile, anticipated
benefits of the transaction, integration of the company and Tegile,
business strategies, products and technologies, market positioning,
growth opportunities, and market demand and trends. There are a number
of risks and uncertainties that may cause these forward-looking
statements to be inaccurate including, among others: the anticipated
benefits of the transaction may not materialize as expected; failure to
successfully integrate the company and Tegile; volatility in global
economic conditions; business conditions and growth in the storage
ecosystem; the impact of competitive products and pricing; market
acceptance and cost of commodity materials and specialized product
components; actions by competitors; unexpected advances in competing
technologies; our development and introduction of products based on new
technologies and expansion into new data storage markets; risks
associated with acquisitions, mergers and joint ventures; difficulties
or delays in manufacturing; and other risks and uncertainties listed in
the company's filings with the Securities and Exchange Commission (the
"SEC"), including the company's Form 10-K filed with the SEC on Aug. 29,
2017, to which your attention is directed. You should not place undue
reliance on these forward-looking statements, which speak only as of the
date hereof, and the company undertakes no obligation to update these
forward-looking statements to reflect subsequent events or circumstances.